diff -r 7ee8072baaba -r 7952f9331fd1 www/js/inv_fermentables.js
--- a/www/js/inv_fermentables.js	Tue Sep 10 15:22:12 2019 +0200
+++ b/www/js/inv_fermentables.js	Wed Sep 11 15:58:32 2019 +0200
@@ -335,7 +335,7 @@
 		$("#name").jqxInput('selectAll');
 	});
 	$("#Delete").jqxButton({ template: "danger", width: '90px', theme: theme });
-	$("#Delete").click(function () {
+	$("#Delete").click(function() {
 		if (editrow >= 0) {
 			// Open a popup to confirm this action.
 			$('#eventWindow').jqxWindow('open');
@@ -346,13 +346,47 @@
 		}
 		$("#popupWindow").jqxWindow('hide');
 	});
-	$("#Cancel").jqxButton({ template: "primary", width: '90px', theme: theme });
+	$('#Cancel').jqxButton({ template: 'primary', width: '90px', theme: theme });
+        $('#Clone').jqxButton({ template: 'warning', width: '90px', theme: theme });
+        $('#Clone').click(function() {
+                var row = {
+                        record: -1,
+                        name: $('#name').val() + ' kopie',
+                        type: $('#type').val(),
+                        yield: parseFloat($('#yield').jqxNumberInput('decimal')),
+                        color: parseFloat($('#color').jqxNumberInput('decimal')),
+                        add_after_boil: $('#add_after_boil').val(),
+                        origin: $('#origin').val(),
+                        supplier: $('#supplier').val(),
+                        notes: $('#notes').val(),
+                        coarse_fine_diff: parseFloat($('#coarse_fine_diff').jqxNumberInput('decimal')),
+                        moisture: parseFloat($('#moisture').jqxNumberInput('decimal')),
+                        diastatic_power: kolbach_to_lintner(parseFloat($('#diastatic_power').jqxNumberInput('decimal'))),
+                        protein: parseFloat($('#protein').jqxNumberInput('decimal')),
+                        dissolved_protein: parseFloat($('#dissolved_protein').jqxNumberInput('decimal')),
+                        max_in_batch: parseFloat($('#max_in_batch').jqxNumberInput('decimal')),
+                        recommend_mash: $('#recommend_mash').val(),
+                        added: $('#added').val(),
+                        always_on_stock: $('#always_on_stock').val(),
+                        di_ph: parseFloat($('#di_ph').jqxNumberInput('decimal')),
+                        acid_to_ph_57: parseFloat($('#acid_to_ph_57').jqxNumberInput('decimal')),
+                        graintype: $('#graintype').val(),
+                        inventory: 0,
+                        cost: parseFloat($('#cost').jqxNumberInput('decimal')),
+                        production_date: '',
+                        tht_date: ''
+
+                };
+                $('#jqxgrid').jqxGrid('addrow', null, row);
+                $('#popupWindow').jqxWindow('hide');
+                location.reload( true );        // reload ourself.
+        });
 	$("#Save").jqxButton({ template: "success", width: '90px', theme: theme });
 	// update the edited row when the user clicks the 'Save' button.
-	$("#Save").click(function () {
+	$("#Save").click(function() {
 		var rowID = -1;
 		if (editrow >= 0) {
-			var rowID = $('#jqxgrid').jqxGrid('getrowid', editrow);
+			rowID = $('#jqxgrid').jqxGrid('getrowid', editrow);
 		}
 		var row = {
 			record: rowID,